login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A090808 as a simple table

na(n)
11
22
34
414
522
648
752
888
9310
10796
115688
126422

[1,2,4,14,22,48,52,88,310,796,5688,6422]